5525 Costello Avenue

Off Market

5525 Costello Avenue

Los Angeles CA 91401

2112 sq. ft.

8103 sq. ft.

Single-Family

Last sold for $1,295,000

Mario Bahramjian, last sold this property on 18 August 2026 after 25 days on market.

Overview

Welcome to 5525 Costello Avenue, nestled in the highly desirable Chandler Estates area of Sherman Oaks. This updated residence offers the rare opportunity to own a home with a detached, permitted 1-bedroom, 1-bath ADU with its own address (5527 N Costello Ave). Set on a spacious lot in one of Sherman Oaks’ most coveted neighborhoods, this home offers the perfect blend of comfort, versatility, and California living. The private backyard is designed for year-round enjoyment, featuring a sparkling pool, expansive patio space, and the perfect setting for entertaining and relaxing. The detached ADU provides exceptional flexibility for multigenerational living, guest accommodations, a private home office, or rental income potential. Conveniently located just minutes from Ventura Boulevard’s premier dining, shopping, entertainment, parks, and top-rated schools, with easy access to major freeways.

Features

4 bedrooms

3 bathrooms

2112 sq. ft. floor area

8103 sq. ft. lot size

Single-Family

Estimated Value

Based on this property and similar 4 bedroom single-family properties sold in Los Angeles over the last 12 months, the estimated median property value of 5525 Costello Avenue is $1.45m.

Median value

$1.45m

Estimated value range

$890k - $3.3m

Median days on market

Estimated value trend

increase over the last 12 months

Average days on market is based on recent, comparable sales in Los Angeles. It is only an indication of the time a property is actively listed and should not be relied upon as an accurate representation of how soon a property will be sold.

Property history for 5525 Costello Avenue

2026

Sold

$1,295,000

18 Aug 2026 by Mario Bahramjian, of Archetype Real Estate Group

2025

Sold

$1,380,000

08 Oct 2025 by Todd Riley, of KW Encino-Sherman Oaks

Happy sellers in Los Angeles

87%

87% of sellers in Los Angeles reported that their sale price either exceeded or met their price expectations.

Los Angeles stands out for consistently delivering exceptional satisfaction and strong market results for homeowners.

This is based on voluntary sentiment collected from 3 reviews in Los Angeles over the last 12 months.

Local market activity for 4 bedroom single-family properties in Los Angeles

In the last 12 months, 40 four-bedroom single-family properties similar to 5525 Costello Avenue, have been sold.

This represents a 19% increase in four-bedroom single-family properties sales when compared to the previous 12 months.

Sold

For Sale

Interested in selling?

People are reaching out to these agents in Los Angeles for a market analysis.

Arman Grigoryan

at Upmost By Arman @ Keller Williams Luxury Beverly

(21 reviews)

Get a market analysis

Mike Harutunyan

at Pinnacle Estate Properties, Inc.

(106 reviews)

Get a market analysis

Ellen Urman

at NELSON SHELTON

(10 reviews)

Get a market analysis

Lila Feingold

at Berkshire Hathaway HomeServices California Properties (Newport Beach, 92660)

(12 reviews)

Get a market analysis

Nearby agents

Compare and contact these top performing agents who’ve delivered exception customer service for their clients in Los Angeles

Arman Grigoryan

Sellers who recommend Arman Grigoryan have praised them for being clear communication, strategic, local expert, and supportive

5 (21 reviews)
3 Reviews in Los Angeles
1 Sale in Los Angeles

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Mike Harutunyan

Sellers who recommend Mike Harutunyan have praised them for being local expert, responsive, supportive, reliable, clear communication, well-prepared, and friendly